Bird feeder



FIG. 1 is a left side elevational view of a bird feeder showing my new design, the right side elevational view being a mirror image;

FIG. 2 is a front elevational view thereof, the rear elevational view being a mirror image;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a front, left, top perspective view thereof; and,

FIG. 6 is a front, left, top perspective view thereof, the broken lines shown are considered environmental and form no part of the claimed design. 

The ornamental design for a bird feeder, as shown and described. 